Freight Costs
Freight Costs help you report your actual shipping costs from your shipping system.
One option lets it read Comments where Published and Negotiated Rates are included.
Freight Terms
Freight Terms lets you add Settings for Freight to set Cost and Charges automatically.
If you offer free shipping or Prepaid freight, you may want to capture shipping Costs. You may also want to zero Charges that were estimated before free theshold was met.
If you offer Prepaid and Add you may want Costs and to apply a formula for Charges.